CN113218612A - Static-pull impact test device for elevator door lock - Google Patents
Static-pull impact test device for elevator door lock Download PDFInfo
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- CN113218612A CN113218612A CN202110644589.9A CN202110644589A CN113218612A CN 113218612 A CN113218612 A CN 113218612A CN 202110644589 A CN202110644589 A CN 202110644589A CN 113218612 A CN113218612 A CN 113218612A
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- 238000009863 impact test Methods 0.000 title claims abstract description 40
- 238000012360 testing method Methods 0.000 claims abstract description 45
- 230000003068 static effect Effects 0.000 claims abstract description 35
- 230000002265 prevention Effects 0.000 abstract description 11
- 238000001514 detection method Methods 0.000 abstract description 7
- 239000011521 glass Substances 0.000 description 6
- 239000003638 chemical reducing agent Substances 0.000 description 5
- 238000000034 method Methods 0.000 description 5
- 230000006378 damage Effects 0.000 description 4
- 238000010586 diagram Methods 0.000 description 3
- 230000000694 effects Effects 0.000 description 3
- 230000003116 impacting effect Effects 0.000 description 3
- 230000033001 locomotion Effects 0.000 description 2
- 230000001681 protective effect Effects 0.000 description 2
- 230000002829 reductive effect Effects 0.000 description 2
- 241000251131 Sphyrna Species 0.000 description 1
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- 208000014674 injury Diseases 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01M—TESTING STATIC OR DYNAMIC BALANCE OF MACHINES OR STRUCTURES; TESTING OF STRUCTURES OR APPARATUS, NOT OTHERWISE PROVIDED FOR
- G01M7/00—Vibration-testing of structures; Shock-testing of structures
- G01M7/08—Shock-testing
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01M—TESTING STATIC OR DYNAMIC BALANCE OF MACHINES OR STRUCTURES; TESTING OF STRUCTURES OR APPARATUS, NOT OTHERWISE PROVIDED FOR
- G01M13/00—Testing of machine parts
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Abstract
The invention relates to the technical field of elevator door lock detection equipment, in particular to an elevator door lock static pull impact test device which comprises a door lock fixing support, a static pull test assembly, an impact test assembly and a secondary impact prevention assembly, wherein the door lock fixing support comprises a supporting plate and a polished rod, the polished rod is connected to a vertical rod in a sliding mode, a first fixing plate used for fixing a movable end of an elevator door lock is arranged on the polished rod, and a second fixing plate used for fixing a fixed end of the elevator door lock is arranged on the supporting plate and on the side face of the first fixing plate; the secondary collision prevention assembly comprises a power telescopic piece and a stop block, wherein the power telescopic piece and the stop block are connected, the power telescopic piece is fixed on the supporting plate and is positioned on one side of the front end of the polished rod, and the stop block is connected to the supporting plate in a sliding mode. Can the backswing when pendulum mechanism strikes the polished rod, the power extensible member extension at this moment and release the dog, and pendulum mechanism backswing back striking to the dog this moment, and the dog blocks pendulum mechanism, avoids its secondary to strike the polished rod, improves test result's accuracy.
Description
Technical Field
The invention relates to the technical field of elevator door lock detection equipment, in particular to an elevator door lock static pull impact test device.
Background
The elevator door of the elevator can be locked after being closed generally, the elevator lock mainly comprises a component A and a component B, the component A is fixed on the elevator door on one side, the component B is fixed on the elevator door on the other side, when the elevator doors on the two sides are closed to the middle, the hook on the component A is fixed, and the hook on the component B can be hung on the hook of the component A to ensure that the lock can not be opened. In order to detect the locking firmness of the elevator lock, the impact resistance and the anti-static performance of the elevator lock need to be detected. When the elevator door lock is detected, firstly, the component A is fixed, then the hook of the component B is hung on the component A, and finally, the component B is impacted or stretched, so that the performance of the elevator door lock is detected (the performance detection standard refers to the standard TSG T7007-2016).
In the mechanical dynamic test of elevator lock, the sample receives dynamic impact back, and the tup receives reaction force, can return certain angle of pendulum. Although the backswing amount is small, the hammerhead after backswing can perform secondary striking on the sample, and the judgment of the test result can be influenced in the case.
Disclosure of Invention
The invention aims to provide an elevator door lock static pull impact test device, which avoids secondary impact of a swinging hammer head on an elevator lock sample and ensures the accuracy of a test result.
In order to achieve the purpose, the technical scheme adopted by the invention is to provide an elevator door lock static pull impact test device which comprises a door lock fixing support, a static pull test assembly, an impact test assembly and a secondary impact prevention assembly, wherein the door lock fixing support comprises a supporting plate and a polished rod, the polished rod is connected to the upright rod in a sliding manner, a first fixing plate for fixing a movable end of an elevator door lock is arranged on the polished rod, and a second fixing plate for fixing a fixed end of the elevator door lock is arranged on the supporting plate and on the side surface of the first fixing plate; the static pull test assembly is positioned on one side of the polished rod and comprises a connecting cylinder, a tension sensor and a driving mechanism which are sequentially connected, a cylinder cavity of the connecting cylinder is provided with a stroke space for the tension sensor to move left and right, and when the static pull test is carried out, the driving mechanism provides tension and transmits the tension to the polished rod through the tension sensor; the impact test assembly comprises a hanging hammer mechanism and a pendulum mechanism, the hanging hammer mechanism is arranged on one side above the supporting plate, the pendulum mechanism is connected to the hanging hammer mechanism, and when an impact test is carried out, the hanging hammer mechanism drives the pendulum mechanism to act and impact the front end of the polished rod; the secondary impact prevention assembly comprises a power telescopic piece and a stop block which are connected, the power telescopic piece is fixed on the supporting plate and located on one side of the front end of the polished rod, the stop block is connected to the supporting plate in a sliding mode, and the power telescopic piece extends and drives the stop block to abut against the pendulum mechanism.
Further, the hammer hanging mechanism comprises an angle encoder, the angle encoder is arranged on the fixed support, and the angle encoder is electrically connected with a starting switch of the power telescopic piece.
Furthermore, the stop block is provided with a yielding groove.
Further, the polished rod is arranged to be cylindrical, the abdicating groove is arranged to be arc-shaped matched with the polished rod, and a gap is reserved between the abdicating groove and the polished rod.
Furthermore, a buffer pad is arranged on one surface of the stop block, which is abutted to the pendulum mechanism.
Furthermore, the support plate is horizontally provided with at least two linear bearings at intervals, and the polished rod is sleeved in the linear bearings in a sliding manner relative to the support plate.
Furthermore, the region corresponding to the polished rod on the supporting plate is provided with at least one strip-shaped groove hole along the length direction of the polished rod, the strip-shaped groove hole is provided with a deep groove ball bearing, the deep groove ball bearing is sleeved with an anti-rotation pin, the polished rod is provided with a shaft hole corresponding to the anti-rotation pin, and one end of the anti-rotation pin is arranged in the shaft hole in a penetrating manner.
Furthermore, the number of the power telescopic parts is at least two, and the output shaft end of each power telescopic part is fixedly connected with the stop block.
The invention has the beneficial effects that:
1. can the backswing when pendulum mechanism strikes the polished rod, the power extensible member extension at this moment and release the dog, and pendulum mechanism backswing back striking to the dog this moment, and the dog blocks pendulum mechanism, avoids its secondary to strike the polished rod, improves test result's accuracy. Meanwhile, the pendulum impact test and the static pull loading test are integrated, all tests can be completed without changing stations, the work content of test operators is reduced, the test time and the equipment cost are saved, and the work efficiency is improved.
2. When an angle encoder on the hanging hammer mechanism detects that the pendulum mechanism swings backwards, a corresponding command is sent to a starting switch of the power telescopic piece, the power telescopic piece stretches out, and the stop block stops the swinging backwards impact of the pendulum mechanism, so that the secondary impact prevention function is realized.
3. Be equipped with the groove of stepping down on the dog, the activity space of polished rod has been left in the setting in groove of stepping down, avoids the dog to interfere the slip to the polished rod. The polished rod is arranged into a cylindrical shape, the abdicating groove is arranged into an arc shape matched with the polished rod, and a gap is reserved between the abdicating groove and the polished rod. The structure can enable the contact area of the stop block and the pendulum mechanism to be larger, the pendulum mechanism is prevented from impacting and deforming the stop block to a certain extent, and the accuracy of test repeated operation is further guaranteed.
4. The power extensible member is two at least, and the output shaft end of each power extensible member all with dog fixed connection. Through setting up a plurality of flexible power pieces, every flexible power piece all can share the impact force of pendulum mechanism, can effectually reduce the impact damage effect of pendulum mechanism to flexible power piece.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, and it is obvious that the drawings in the following description are some embodiments of the present invention, and other drawings can be obtained by those skilled in the art without creative efforts.
Fig. 1 is a schematic perspective view of an elevator door lock static pull impact test device according to an embodiment of the present invention;
fig. 2 is a schematic position diagram of a secondary collision prevention assembly adopted by the elevator door lock static pull impact testing device provided by the embodiment of the invention;
fig. 3 is a schematic view of the overall structure of a secondary collision prevention assembly adopted in the elevator door lock static pull impact test apparatus provided in the embodiment of the present invention;
FIG. 4 is an enlarged view of portion A of FIG. 3;
FIG. 5 is a schematic diagram of the position of an anti-rotation pin adopted by the device for testing static pull impact of an elevator door lock provided by the embodiment of the invention;
fig. 6 is a schematic structural diagram of an impact test assembly adopted by the elevator door lock static pull impact test device provided by the embodiment of the invention.
Description of reference numerals:
1. a test bed; 2. a door lock fixing bracket; 21. a support plate; 211. a vertical plate; 22. a polish rod; 23. a first fixing plate; 24. a second fixing plate; 25. a linear bearing; 26. fixing the anti-rotation pin; 3. a static pull test assembly; 31. a connecting cylinder; 32. a tension sensor; 33. a drive mechanism; 331. a servo motor; 332. an electric cylinder; 333. a speed reducer; 4. an impact test assembly; 41. a hammer hanging mechanism; 411. a magnet; 412. a connecting lever; 413. a lever support; 414. connecting a grapple; 415. a grapple support; 416. a shear pin; 417. an angle encoder; 42. a pendulum mechanism; 421. connecting the swing rod; 422. hooking; 423. a pendulum body; 5. a secondary impact prevention assembly; 51. a powered telescoping member; 52. a stopper; 521. a yielding groove; 6. and a control box.
Detailed Description
The technical solutions of the present invention will be described clearly and completely with reference to the accompanying drawings, and it should be understood that the described embodiments are some, but not all embodiments of the present invention. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
In the description of the present invention, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc., indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience of description and simplicity of description, but do not indicate or imply that the device or element being referred to must have a particular orientation, be constructed and operated in a particular orientation, and thus, should not be construed as limiting the present invention. Furthermore, the terms "first," "second," and "third" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.
In the description of the present invention, it should be noted that, unless otherwise explicitly specified or limited, the terms "mounted," "connected," and "connected" are to be construed broadly, e.g., as meaning either a fixed connection, a removable connection, or an integral connection; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meanings of the above terms in the present invention can be understood in specific cases to those skilled in the art.
In addition, the technical features involved in the different embodiments of the present invention described below may be combined with each other as long as they do not conflict with each other.
Referring to fig. 1-6, the elevator door lock static pull impact test device provided by the embodiment of the invention comprises a door lock fixing support 2, a static pull test component 3, an impact test component 4 and a secondary impact prevention component 5, wherein the door lock fixing support 2 comprises a support plate 21 and a polished rod 22, the polished rod 22 is slidably connected to a vertical rod, a first fixing plate 23 used for fixing the movable end of an elevator door lock is arranged on the polished rod 22, and a second fixing plate 24 used for fixing the fixed end of the elevator door lock is arranged on the support plate 21 and on the side surface of the first fixing plate 23; the static pull test assembly 3 is positioned on one side of the polished rod 22 and comprises a connecting cylinder 31, a tension sensor 32 and a driving mechanism 33 which are sequentially connected, a cylinder cavity of the connecting cylinder 31 is provided with a stroke space for the tension sensor 32 to move left and right, and when in static pull test, the driving mechanism 33 provides tension and transmits the tension to the polished rod 22 through the tension sensor 32; the impact test assembly 4 comprises a hanging hammer mechanism 41 and a pendulum mechanism 42, the hanging hammer mechanism 41 is arranged on one side above the support plate 21, the pendulum mechanism 42 is connected to the hanging hammer mechanism 41, and when in impact test, the hanging hammer mechanism 41 drives the pendulum mechanism 42 to act and impact the front end of the light bar 22; the secondary collision preventing assembly 5 comprises a power expansion piece 51 and a stop block 52 which are connected, wherein the power expansion piece 51 is fixed on the support plate 21 and is positioned on one side of the front end of the polish rod 22, the stop block 52 is connected to the support plate 21 in a sliding mode, and the power expansion piece 51 extends to drive the stop block 52 to abut against the pendulum mechanism 42. When the pendulum mechanism 42 strikes the polished rod 22, the pendulum mechanism will swing back, the power expansion piece 51 extends and pushes the stopper 52 out, the pendulum mechanism 42 swings back and then strikes the stopper 52, the stopper 52 stops the pendulum mechanism 42, secondary impact on the polished rod 22 is avoided, and accuracy of a test result is improved. Meanwhile, the pendulum impact test and the static pull loading test are integrated, all tests can be completed without changing stations, the work content of test operators is reduced, the test time and the equipment cost are saved, and the work efficiency is improved.
Specifically, the power expansion piece 51 is a cylinder or a lift in the prior art, which extends along the impact direction of the pendulum mechanism 42, i.e., the power expansion piece 51 extends along the length direction of the polished rod 22 and the extending direction is opposite to the moving direction of the polished rod 22 after impact. The hammer hanging mechanism 41 comprises an angle encoder 417, the angle encoder 417 is arranged on a fixed bracket, and the angle encoder 417 is electrically connected with a starting switch of the power expansion piece 51. When the angle encoder 417 on the plumb mechanism 41 detects that the pendulum mechanism 42 swings back, a corresponding command is sent to the starting switch of the power expansion piece 51, the power expansion piece 51 extends out, and the stopper 52 blocks the swing back impact of the pendulum mechanism 42, so that the secondary impact prevention function is realized. The number of the power telescopic parts 51 is at least two, and the output shaft end of each power telescopic part 51 is fixedly connected with the stop block 52. Through setting up a plurality of flexible power pieces, every flexible power piece all can share pendulum mechanism 42's impact force, can effectually reduce the impact damage effect of pendulum mechanism 42 to flexible power piece. The stopper 52 is provided with an abdicating groove 521, and the arrangement of the abdicating groove 521 leaves a moving space of the polish rod 22, so that the stopper 52 is prevented from interfering the sliding of the polish rod 22. The polish rod 22 is formed in a cylindrical shape, the receding groove 521 is formed in an arc shape to be matched with the polish rod 22, and a gap is left between the receding groove 521 and the polish rod 22. The structure arrangement can enable the contact area of the stop block 52 and the pendulum mechanism 42 to be larger, so that the pendulum mechanism 42 is prevented from impacting and deforming the stop block 52 to a certain extent, and the accuracy of test repeated operation is further ensured. A cushion is provided on the surface of the stopper 52 that abuts against the pendulum mechanism 42, and further plays a role of cushioning.
As a variant, the power expansion element 51 can also be extended in the vertical direction, i.e. the power expansion element 51 is extended in the vertical direction of the polished rod 22, and this arrangement also can block the secondary swinging back of the pendulum mechanism 42. At this time, the stopper 52 needs to be thinner, because the swinging amount of the pendulum mechanism 42 is smaller, and the distance between the pendulum mechanism 42 and the polish rod 22 is limited, the stopper 52 can be thinner to stop the swinging of the pendulum mechanism 42 and not interfere with the movement of the polish rod 22.
Further, at least two linear bearings 25 are horizontally arranged on the support plate 21 at intervals, and the polish rod 22 is slidably sleeved in the linear bearings 25 relative to the support plate 21. So that the first fixing plate 23 can move left and right with respect to the second fixing plate 24, so that a static pull test and an impact test can be performed by pulling the polish rod 22 or impacting the polish rod 22.
Specifically, the supporting plate 21 includes a vertical plate 211, the polish rod 22 is transversely and slidably disposed on the vertical plate 211, the polish rod 22 is provided with a first fixing plate 23 for fixing a movable end of the elevator door lock, and the vertical plate 211 is provided with a second fixing plate 24 for fixing a fixed end of the elevator door lock on a side of the first fixing plate 23. The hammer attaching mechanism 41 is disposed on one side above the vertical plate 211, the pendulum mechanism 42 is connected to the hammer attaching mechanism 41, and during the impact test, the hammer attaching mechanism 41 drives the pendulum mechanism 42 to move and impact the front end of the light bar 22. At least one slotted hole is formed in the area, corresponding to the polished rod 22, of the vertical plate 211 along the length direction of the polished rod 22, a deep groove ball bearing is arranged in each slotted hole, an anti-rotation pin 26 is connected to each deep groove ball bearing in a sleeved mode, a shaft hole corresponding to the anti-rotation pin 26 is formed in the polished rod 22, and one end of the anti-rotation pin 26 penetrates through the shaft hole. The anti-rotation pins 26 move left and right along with the polish rod 22 and limit the polish rod 22 to rotate in the moving process, and the deep groove ball bearings moving left and right on the polish rod 22 are synchronous with the polish rod 22 and slide in the slotted holes to realize guiding.
In this embodiment, the driving mechanism 33 is composed of a servo motor 331, an electric cylinder 332 and a speed reducer 333, the electric cylinder 332 is connected with the tension sensor 32 through an electric cylinder 332 connecting rod, the speed reducer 333 is respectively in transmission connection with the servo motor 331 and the electric cylinder 332, the servo motor 331 drives the speed reducer 333 to rotate, the electric cylinder 332 is driven to run after the speed reducer 333 is accelerated and decelerated, during static tension test, the electric cylinder 332 makes contraction motion, so that tension is applied to the tension sensor 32 and the polished rod 22, and meanwhile, the first fixing plate 23 is moved in a direction away from the second fixing plate 24, so that tension test is performed on a hanging part between the movable end of the elevator door lock and the fixed end of the elevator door lock. Of course, other configurations of the drive mechanism 33 known in the art are also contemplated and are not illustrated herein.
In this embodiment, the hammer hanging mechanism 41 includes a magnet 411, a swing shaft seat, a swing shaft, a connecting lever 412 and a connecting grapple 414, the swing shaft seat is in an inverted U-shaped structure, one arm of the swing shaft seat is fixed on the vertical plate 211, one side of the top of the swing shaft seat is connected with the magnet 411, and a push rod of the magnet 411 is arranged upward and can extend and retract up and down; a grapple support 415 is arranged at the top of the swing shaft seat, and the grapple support 415 is hinged with the grapple; a lever support 413 is arranged at the top of the swing shaft seat between the push rod of the magnet 411 and the connecting grapple 414, the middle part of the connecting lever 412 is hinged to the lever support 413, one end of the connecting lever 412 is hinged to the top of the push rod of the magnet 411, and the other end of the connecting lever 412 extends into a corresponding groove of the connecting grapple 414; two ends of the pendulum shaft are arranged between two arms of the pendulum shaft seat through a deep groove ball bearing and a locking nut, one end of the pendulum shaft is also connected with an angle encoder 417, and the axis of the pendulum shaft is vertical to the axis of the polished rod 22.
In this embodiment, the pendulum mechanism 42 includes a locking cover, a plug, a connecting swing rod 421, a hook 422, a joint, and a swing body 423, the locking cover and the plug are matched and clamped on the swing shaft, one end of the swing rod is connected with the plug, the other end of the swing rod is connected with the swing body 423 through the joint, the plug and the joint are both locked and connected with the swing rod through a taper pin, the hook 422 is disposed in the middle of the swing rod to be used for being hung with the hook when the swing body 423 lifts up to the highest position, the hook 422 is further provided with a hook 422 gasket, and the hook 422 gasket can effectively protect the hook 422 as a quick-wear part. Be equipped with safety pin 416 seat on the last arm of keeping away from riser 211 of pendulum axle seat, safety pin 416 has been inserted to the round pin of safety pin 416 seat violently, and the front end of safety pin 416 inserts in the pinhole on riser 211 to accessible safety pin 416 locks fixedly when making pendulum mechanism 42 lift up the highest position, has the detection switch through detecting switch support mounting between the two arms of pendulum axle, and the detection switch is used for detecting the inserted state of safety pin 416.
In this embodiment, the top of riser 211 still is equipped with the protection casing, the protection casing includes the left socle, the guide bar, protection casing glass, a handle, right branch seat and second linear bearing 25, left socle and right branch seat are fixed in the left and right sides at riser 211 top respectively, the guide bar is connected between left socle and right branch seat, second linear bearing 25 slidable ground sets up in the guide bar, protection casing glass connects in second linear bearing 25 in order to carry out safety protection to 2 regions of elevator lock fixed bolster, protection casing glass can be on the guide bar horizontal slip, in experimental clamping stage, can remove protection casing glass to 2 regional one side in position of elevator lock fixed bolster, experimental stage, remove protection casing glass to the fixed position region of elevator lock again, can effectually protect, protect the testing personnel, and convenient operation.
In this embodiment, the static impact test device that draws of elevator door lock still includes test bench 1 and control box 6, and the bottom of riser 211 still is equipped with the bottom plate, and riser 211 passes through screwed connection with the bottom plate, and riser 211 is fixed in test bench 1 through the bottom, and control box 6 sets up in riser 211 side in order to be used for drawing quiet test subassembly 3 and impact test subassembly 4 and control.
The working principle of the embodiment of the invention is as follows:
before the test is started, the fixed end of the elevator door lock is fixed on the second fixing plate 24 by using a screw, the movable end of the other part of the elevator door lock is fixed on the first fixing plate 23, and the two parts of the elevator door lock are mutually pulled by the hook 422 of the elevator door lock.
The pendulum mechanism 42 is locked to the pendulum shaft of the pendant mechanism 41. In a natural vertical state of the pendulum mechanism 42 when not under stress, the touch screen on the control box 6 is used to zero the current real-time angle recorded by the angle encoder 417. Then, one end of the light rod 22 is attached to the side of the pendulum 423 of the pendulum mechanism 42, and at this time, the shaftless encoder records in real time that the angle of the pendulum mechanism 42 is still zero. Rotating pendulum mechanism 42 clockwise lifts pendulum body 423 up, and hook 422 on pendulum mechanism 42 is hung on connecting grapple 414 on the pendulum mechanism, at this moment, pendulum mechanism 42 has corresponding energy, of course, other corresponding energy values are set according to different weights of pendulum body 423. After the pendulum mechanism 42 is lifted, the safety pin 416 is inserted into the hole of the seat of the safety pin 416 for safety, the front end of the safety pin 416 extends into the corresponding hole of the vertical plate 211, at this time, the detection switch detects the existence of the safety pin 416, the non-impact state is entered, if the impact button is pressed at this time, the magnet 411 does not have any action, and the touch screen can prompt the information that the safety pin 416 is not taken down.
After the test is ready, the handle on the protective cover is pulled, and the test area is protected by the glass protective cover, so that personal injury to testers caused by accidental release in the test process is prevented. When the test is started, the safety pin 416 must be taken down, and at this time, the test can be started without the safety pin 416 being detected by the detection switch. In the impact test, the impact button on the control box 6 is pressed, the push rod of the magnet 411 moves upwards, the end, connected with the push rod of the magnet 411, of the connecting lever 412 is pushed to move upwards, according to the lever principle, the other end of the connecting lever 412 presses the end, provided with the hook, of the connecting grapple 414 downwards, and the end, provided with the hook, of the connecting grapple 414 moves upwards to be separated from the hook 422 hung on the connecting grapple 414. The pendulum mechanism 42 swings downwards counterclockwise under the driving of the pendulum shaft, when the reading of the angle encoder is zero, the pendulum body 423 collides with the polished rod 22, and finally the polished rod 22 drives the movable end of the elevator door lock on the movable end fixing plate of the elevator door lock to move towards the right side. And finally, observing whether the elevator door lock is damaged or not and judging whether the performance of the elevator door lock meets the standard requirements or not.
In the impact test process, when the pendulum mechanism 42 strikes the polished rod 22, the pendulum mechanism 42 swings back, at this time, the angle encoder 417 detects that the pendulum mechanism 42 swings back, a corresponding command is sent to the starting switch of the power telescopic part 51, the power telescopic part 51 extends out, the stopper 52 blocks the swing back impact of the pendulum mechanism 42, and the secondary impact prevention function is realized.
Among the impact test process, even elevator door lock is by the impact fracture for polished rod 22 continues to move to one side, prevent changeing the deep groove ball bearing on the round pin decides 26 and can roll to the right side in the corresponding slotted hole of riser 211, stop after the edge of touchhing the slotted hole, at this moment, polished rod 22 can move right in connecting cylinder 31, because there is certain idle stroke space in the connecting cylinder 31, consequently, polished rod 22's impact force can not lead to the fact the damage to force sensor 32, force sensor 32 has effectively been protected.
And during static pull test, the installation method of the elevator door lock is the same as that of the impact test. The position of the shield is the same as before, and at this point the test can be started by simply pressing the pull button on the control box 6. The servo motor 331 drives the deceleration rotation, so that the electric cylinder 332 starts to retract inwards. The sensor records the tension value in real time, the electric cylinder 332 starts to enter a load-holding state when the tension value reaches set parameters, and the electric cylinder 332 automatically extends outwards to unload after the set load-holding time is reached. The test is then completed by observing whether the elevator door lock is damaged, and the tension sensor 32 records the static pull test value.
The embodiments of the present invention are preferred embodiments of the present invention, and the scope of the present invention is not limited by these embodiments, so: all equivalent changes made according to the structure, shape and principle of the invention are covered by the protection scope of the invention.
Claims (8)
1. The utility model provides an elevator door lock static pull impact test device which characterized in that includes:
the door lock fixing support (2) comprises a supporting plate (21) and a polished rod (22), the polished rod (22) is connected to the vertical rod in a sliding mode, a first fixing plate (23) used for fixing the movable end of the elevator door lock is arranged on the polished rod (22), and a second fixing plate (24) used for fixing the fixed end of the elevator door lock is arranged on the supporting plate (21) and on the side face of the first fixing plate (23);
the static pull test assembly (3) is positioned on one side of the polished rod (22) and comprises a connecting cylinder (31), a tension sensor (32) and a driving mechanism (33) which are sequentially connected, a cylinder cavity of the connecting cylinder (31) is provided with a stroke space for the tension sensor (32) to move left and right, and when the static pull test is carried out, the driving mechanism (33) provides tension and the tension is transmitted to the polished rod (22) through the tension sensor (32);
the impact test assembly (4) comprises a hanging hammer mechanism (41) and a pendulum mechanism (42), the hanging hammer mechanism (41) is arranged on one side above the supporting plate (21), the pendulum mechanism (42) is connected to the hanging hammer mechanism (41), and when in impact test, the hanging hammer mechanism (41) drives the pendulum mechanism (42) to act and impact the front end of the polished rod (22);
prevent secondary collision subassembly (5), including power extensible member (51) and dog (52) that are connected, power extensible member (51) are fixed in backup pad (21) are gone up and are located the front end one side of polished rod (22), dog (52) sliding connection in backup pad (21), power extensible member (51) extension and drive dog (52) butt pendulum mechanism (42).
2. The elevator door lock static pull impact test apparatus according to claim 1, wherein the hammer mechanism (41) comprises an angle encoder (417), the angle encoder (417) is provided on the fixed bracket, and the angle encoder (417) is electrically connected to a start switch of the power expansion member (51).
3. The elevator door lock static pull impact test device of claim 1, wherein the stopper (52) is provided with a relief groove (521).
4. The elevator door lock static pull impact test device according to claim 3, wherein the polish rod (22) is provided in a cylindrical shape, the abdicating groove (521) is provided in an arc shape to match with the polish rod (22), and a gap is left between the abdicating groove (521) and the polish rod (22).
5. The elevator door lock static pull impact test apparatus of claim 1, wherein a surface of the stop (52) abutting the pendulum mechanism (42) is provided with a cushion.
6. The elevator door lock static pull impact test device according to claim 1, wherein the support plate (21) is horizontally provided with at least two linear bearings (25) at intervals, and the polish rod (22) is slidably sleeved in the linear bearings (25) relative to the support plate (21).
7. The elevator door lock static pull impact test device according to claim 6, wherein the area of the support plate (21) corresponding to the polish rod (22) is provided with at least one slotted hole along the length direction of the polish rod (22), the slotted hole is provided with a deep groove ball bearing, the deep groove ball bearing is sleeved with a rotation-preventing pin fixture (26), the polish rod (22) is provided with a shaft hole corresponding to the rotation-preventing pin fixture (26), and one end of the rotation-preventing pin fixture (26) is inserted into the shaft hole.
8. The elevator door lock static pull impact test device according to claim 1, wherein the number of the power expansion members (51) is at least two, and an output shaft end of each power expansion member (51) is fixedly connected with the stop block (52).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110644589.9A CN113218612A (en) | 2021-06-09 | 2021-06-09 | Static-pull impact test device for elevator door lock |
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| CN117232998A (en) * | 2023-11-10 | 2023-12-15 | 苏州施耐德电梯有限公司 | Elevator landing door strength detection device |
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